CN205826370U - A kind of injector being suitable to take hazardous gas - Google Patents
A kind of injector being suitable to take hazardous gas Download PDFInfo
- Publication number
- CN205826370U CN205826370U CN201620751634.5U CN201620751634U CN205826370U CN 205826370 U CN205826370 U CN 205826370U CN 201620751634 U CN201620751634 U CN 201620751634U CN 205826370 U CN205826370 U CN 205826370U
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- valve
- gas
- way
- air
- injector
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- Expired - Fee Related
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- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
This utility model relates to a set of injector being suitable to take hazardous gas.It is mainly used in during stable isotope mass spectrograph two-way sample introduction being specifically designed for the acquisition of dangerous reference gas and sample introduction uses, reference gas injection port helixseal can connect directly and in gas stable isotope mass spectrograph two-way sampling system, can analyze for mass spectrometric two-way sample introduction as the accessory that apolegamy is suitable, this user simple to operation.
Description
Technical field
This utility model relates to a kind of injector being suitable to take hazardous gas, at stable isotope mass spectrograph two-way sample introduction
Use during mode test elements isotope.
Background technology
Gas stable isotope mass spectrograph has extensive answering in terms of geoscience, life sciences and environmental studies in recent years
With.Checked gaseous sample enters mass spectrometer mainly to be had and flows to sample and two-way sample introduction two ways continuously: the former needs
Carrier gas is transported sample gas and is entered mass spectrometric source housing, and connection interface is by needle-valve and quartz capillary on-line joining process；
The latter is under vacuum conditions by the diffusion way sample introduction of connecting line.In two-way input mode: a road is entering of sample gas
Sample path, another road is reference gas sample introduction path.Gaseous sample when two-way sample introduction as required or use online mode enter
Sample, sample gas is directly entered mass spectrometric two-way sampling system by auxiliary equipment and mass spectrograph on-line joining process and completes online to survey
Examination；Or use off-line hand sampling mode sample introduction, sample gas by the gas being stored in air accumulator being collected by and
Mass spectrometric injection port connection sample introduction.If the canonical reference gas taken under off-line input mode belongs to hazardous gas (such as: H2 、
CO、 SO2Deng), leak on the person and the impact of environment in order to avoid gas, need one to be specifically used to take dangerous class gas
Sampling/the injector of body, it is simple to sampling pressure controls and reference gas sample introduction analysis is tested.
Summary of the invention
In view of above-mentioned, the purpose of this utility model aims to provide a set of injector being suitable to take hazardous gas.This sample introduction
Device and gas stable isotope mass spectrograph two-way sampling system reference gas therein injection port helixseal connect, and injector can
The accessory suitable as apolegamy is analyzed for mass spectrometric two-way sample introduction.
The purpose of this utility model so completes:
A kind of injector being suitable to take hazardous gas, mainly by injection valve, diffuser valve, three-position three-way valve take air valve,
100ml air accumulator, sealing cone pad form with nut, positive-negative pressure gauge, purging evacuated tube, the adapter of steel cylinder gas rustless steel.Injection valve
The cone pad of front end and nut seal with mass spectrograph injection port and connects, injection valve rear end pass through stainless steel tube successively with diffuser valve, three
Position three-way valve takes air valve and 100ml air accumulator connects, and equipped with positive-negative pressure gauge on 100ml air accumulator, three-position three-way valve takes air valve
On be equipped with purging evacuated tube and steel cylinder gas rustless steel adapter.
Advantage of the present utility model:
1, this utility model uses diffuser valve balance diffusion way, makes the dangerous reference gas of collection by air accumulator balance diffusion
In small size pipeline, make the gas pressure (detection signal) in entrance mass spectrometric reference gas sample storage tank moderate, convenient survey
While examination, reduce waste gas and discharge the injury to human body and the pollution of environment.
2, this utility model simple in construction, easy to use, there is good use promotional value.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
In figure: 1-injection valve, 2-diffuser valve, 3-3-position-3-way take air valve, 4-100ml air accumulator, 5-sealing cone pad and spiral shell
Cap, 6-positive-negative pressure gauge, 7-purging evacuated tube, the adapter of 8-steel cylinder gas rustless steel.
Detailed description of the invention
Below, in conjunction with accompanying drawing, the technical solution of the utility model is further described again:
As it is shown in figure 1, a set of injector being suitable to take hazardous gas.Gas is taken by injection valve 1, diffuser valve 2,3-position-3-way
Valve 3,100ml air accumulator 4, sealing cone pad and nut 5, positive-negative pressure gauge 6, purging evacuated tube 7, steel cylinder gas rustless steel adapter 8 groups
Become.The cone pad of injection valve 1 front end connects with the sealing of mass spectrograph injection port with nut 5, convenient cone pad and nut 5 and mass spectrograph sample introduction
Mouth connects and dismounting；Injection valve 1 rear end takes air valve 3,100ml gas storage successively by stainless steel tube with diffuser valve 2, three-position three-way valve
Tank 4 connects, and equipped with positive-negative pressure gauge 6 on 100ml air accumulator 4, three-position three-way valve takes and is equipped with purging evacuated tube 7 and steel on air valve 3
Bottle gas rustless steel adapter 8.Diffuser valve 2 is used for release and the diffusion of air accumulator 4 gas；It is (parallel that 3-position-3-way takes 3 one, air valve
Position) connect steel cylinder gas rustless steel adapter 8, one (L-transposition) is connected with purging evacuated tube 7, and one (right-hand rotation position) is close stance；
Air accumulator 4 is the stainless cylinder of steel of 100ml, and the steel cylinder gas of storage small size, air accumulator 4 connects positive-negative pressure gauge 6 and shows air accumulator 4
Interior gas pressure；Three-position three-way valve take be equipped with on air valve 3 purging evacuated tube 7 typically select teflon pipe or plastic tube.Above-mentioned portion
Part is used as an entirety by stainless steel tube connection.
The reference gas tank using method of injector is as follows:
Injector system forvacuum: the forward end seal of this reference gas tank injection valve 1 is bored pad and enters with mass spectrograph with nut 5
Sample mouth sealing screw connects, and 3-position-3-way takes air valve 3 and forwards the closedown of right-hand rotation position to, open injection valve 1 and diffuser valve 2, by mass spectrum
The backing pump of instrument is to reference to gas tank evacuation, and positive-negative pressure gauge 6 vacuum on air accumulator 4 shows when reaching 3*10-3mbar, depends on
Secondary closedown diffuser valve 2 and injection valve 1, the forward end seal cone pad being then turned off being connected with mass spectrograph is protected with nut 5, such injector
Hold vacuum state, wait and take reference gas.
Purging takes gas process: 3-position-3-way takes air valve 3 one end steel cylinder gas rustless steel adapter 8 and large volume steel cylinder hermetic seal
Connection, then takes 3-position-3-way air valve 3 and forwards L-transposition to, and purging evacuated tube 7 extends to outside window or stretches into alkali liquor (NaOH is molten
Liquid, for SO2) in, open steel cylinder gas air relief valve, allow gas purging 3-position-3-way in steel cylinder take air valve 3 and steel cylinder gas junction
Pipe section, at this moment from purging evacuated tube 7 gas out or be discharged to outdoor or absorbed by aqueous slkali.Then by 3-position-3-way
Taking air valve 3 and forward parallel position to, at this moment steel cylinder gas enters in air accumulator 4 by connecting pipeline, according to consumption demand (on air accumulator 4
Positive-negative pressure gauge 6 vacuum values) close in time 3-position-3-way and take air valve 3(right-hand rotation position), take off injector after taking gas.
Intake process: the forward end seal of injection valve 1 is bored pad and nut 5 and mass spectrograph sample introduction according still further to above connected mode
Mouth sealing screw connects, and is evacuated to 3*10-3mbar(mass spectrometric fore vacuum value), it is ensured that the front end of injection valve 1 and mass spectrum
Between instrument injection port after cleaning, opening diffuser valve 2, close diffuser valve 2 immediately, at this moment the gas in air accumulator 4 is diffused into injection valve 1
And between diffuser valve 2 in small size.When needing test, only need to open injection valve 1 and cut out injection valve 1 can be (according to entering at once
Enter the signal of gas in mass spectrograph sample storage tank, select number of times and the diffusion time opened).
Claims (1)
1. be suitable to take an injector for hazardous gas, mainly taken air valve by injection valve (1), diffuser valve (2), three-position three-way valve
(3), 100ml air accumulator (4), sealing cone pad and nut (5), positive-negative pressure gauge (6), purging evacuated tube (7), steel cylinder gas rustless steel
Adapter (8) composition, is characterized in that the cone pad of injection valve (1) front end connects with the sealing of mass spectrograph injection port with nut (5), injection valve
(1) rear end takes air valve (3) with diffuser valve (2), three-position three-way valve successively by stainless steel tube and 100ml air accumulator (4) is connected,
Equipped with positive-negative pressure gauge (6) on 100ml air accumulator (4), three-position three-way valve takes and is equipped with purging evacuated tube (7) and steel on air valve (3)
Bottle gas rustless steel adapter (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620751634.5U CN205826370U (en) | 2016-07-16 | 2016-07-16 | A kind of injector being suitable to take hazardous gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620751634.5U CN205826370U (en) | 2016-07-16 | 2016-07-16 | A kind of injector being suitable to take hazardous gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205826370U true CN205826370U (en) | 2016-12-21 |
Family
ID=57562663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620751634.5U Expired - Fee Related CN205826370U (en) | 2016-07-16 | 2016-07-16 | A kind of injector being suitable to take hazardous gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205826370U (en) |
-
2016
- 2016-07-16 CN CN201620751634.5U patent/CN205826370U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20180716 |